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Subject[GIT PULL] tracing: Changes for 5.3

Linus,

The main changes in this release include:

- Add user space specific memory reading for kprobes
- Allow kprobes to be executed earlier in boot

The rest are mostly just various clean ups and small fixes.


Please pull the latest trace-v5.3 tree, which can be found at:


git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace.git
trace-v5.3

Tag SHA1: 93f8024308e2b5e3df59cd89ab776e3236cb69e5
Head SHA1: 0aeb1def44169cbe7119f26cf10b974a2046142e


Cheng Jian (1):
ftrace: Enable trampoline when rec count returns back to one

Cong Wang (3):
tracing: Pass type into tracing_generic_entry_update()
tracing: Let filter_assign_type() detect FILTER_PTR_STRING
tracing: Make trace_get_fields() global

Gustavo A. R. Silva (1):
tracepoint: Use struct_size() in kmalloc()

Masami Hiramatsu (20):
x86/uaccess: Allow access_ok() in irq context if pagefault_disabled
uaccess: Add non-pagefault user-space read functions
tracing/probe: Add ustring type for user-space string
tracing/probe: Support user-space dereference
selftests/ftrace: Add user-memory access syntax testcase
perf-probe: Add user memory access attribute support
uaccess: Add a prototype of non-static __probe_user_read()
tracing/kprobe: Cast user-space address correctly
kprobes: Initialize kprobes at postcore_initcall
tracing/kprobe: Add kprobe_event= boot parameter
kprobes: Fix to init kprobes in subsys_initcall
tracing/kprobe: Set print format right after parsed command
tracing/uprobe: Set print format when parsing command
tracing/probe: Add trace_probe init and free functions
tracing/probe: Add trace_event_call register API for trace_probe
tracing/probe: Add trace_event_file access APIs for trace_probe
tracing/probe: Add trace flag access APIs for trace_probe
tracing/probe: Add probe event name and group name accesses APIs
tracing/probe: Add trace_event_call accesses APIs
tracing/kprobe: Check registered state using kprobe

Matthias Kaehlcke (1):
tracing: Use correct function name in trace_filter_add_remove_task() comment

Steven Rostedt (VMware) (7):
ftrace: Make enable and update parameters bool when applicable
x86/ftrace: Make enable parameter bool where applicable
tracing: Make a separate config for trace event self tests
tracing/kprobe: Do not run kprobe boot tests if kprobe_event is on cmdline
ring-buffer: Remove HAVE_64BIT_ALIGNED_ACCESS
ftrace/selftests: Return the skip code when tracing directory not configured in kernel
ftrace/selftest: Test if set_event/ftrace_pid exists before writing

----
Documentation/admin-guide/kernel-parameters.txt | 13 +
Documentation/trace/kprobetrace.rst | 42 ++-
Documentation/trace/uprobetracer.rst | 10 +-
arch/Kconfig | 16 -
arch/x86/include/asm/uaccess.h | 4 +-
arch/x86/kernel/ftrace.c | 6 +-
include/linux/ftrace.h | 4 +-
include/linux/trace_events.h | 9 +
include/linux/uaccess.h | 20 +-
kernel/kprobes.c | 3 +-
kernel/trace/Kconfig | 12 +-
kernel/trace/ftrace.c | 48 +--
kernel/trace/ring_buffer.c | 17 +-
kernel/trace/trace.c | 17 +-
kernel/trace/trace_event_perf.c | 3 +-
kernel/trace/trace_events.c | 10 +-
kernel/trace/trace_events_filter.c | 3 +
kernel/trace/trace_kprobe.c | 357 ++++++++++++---------
kernel/trace/trace_probe.c | 142 +++++++-
kernel/trace/trace_probe.h | 77 ++++-
kernel/trace/trace_probe_tmpl.h | 36 ++-
kernel/trace/trace_uprobe.c | 180 ++++-------
kernel/tracepoint.c | 4 +-
mm/maccess.c | 122 ++++++-
tools/perf/Documentation/perf-probe.txt | 3 +-
tools/perf/util/probe-event.c | 11 +
tools/perf/util/probe-event.h | 2 +
tools/perf/util/probe-file.c | 7 +
tools/perf/util/probe-file.h | 1 +
tools/perf/util/probe-finder.c | 19 +-
tools/testing/selftests/ftrace/ftracetest | 38 ++-
tools/testing/selftests/ftrace/test.d/functions | 4 +-
.../ftrace/test.d/kprobe/kprobe_args_user.tc | 32 ++
33 files changed, 861 insertions(+), 411 deletions(-)
create mode 100644 tools/testing/selftests/ftrace/test.d/kprobe/kprobe_args_user.tc
---------------------------

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